78.1 While a boat is racing,
her boat’s owner and any other person in charge shall ensure that the
boat is maintained to comply with her class rules and that her
measurement or rating certificate, if any, remains valid. In addition, the boat
shall also comply at other times specified in the class rules, the notice of
race or the sailing instructions.

78.2 When a rule
requires a valid certificate to be produced or its existence verified before
a boat races, and this cannot be done, the boat may race provided that the race
committee receives a statement signed by the person in charge that a valid certificate
exists. The boat shall produce the certificate or arrange for its existence
to be verified by the race committee. The penalty for breaking this rule is
disqualification without a hearing from all races of the event.